HRC55 Solid Carbide 2 Flutes Coolant Hole Long Carbide Twist Drill Bits

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HRC55 Solid Carbide 2 Flutes Coolant Hole Long Carbide Twist Drill Bits

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Product Description

📋 Basic Information

Model NO.

RDM

Type

Deep-Hole Carbide Internal Cooling Drill

Material

Tungsten Carbide

Length

80-525mm

Drilling Depth

Maximum 50xd

Tolerance Class

0.005-0.02mm

Drill Point Angle

118-140°

Coating

Tialn, Alcr, Tisin, Altin or Dlc

Coolant Type

Internal or External Coolant

Specification

Dia. 3mm - 20mm

🛠️ Product Description

Solid Carbide 2 Flutes Coolant Hole Long Carbide Drill Bits HRC55

With a wide range of standard sizes in stock, we guarantee prompt delivery to meet your production needs. Additionally, we offer customized solutions to address specific industry requirements, ensuring a high-performance tool that perfectly aligns with your unique applications.

🖼️ Detailed Photos

⚙️ Application

📊 Product Parameters

Standard Size Specifications

Flute Diameter	Max. Cutting Depth	Shank Diameter	Overall Length
D3.00-D3.70	20	6	62
D4.80-D6.00	28	6	66
D8.10-D10.0	47	10	89
D12.1-D14.0	60	14	107
D18.1-D20.0	2	20	131

MAX 50D Range

ITEM	Flute Diameter	Max Cutting Depth	Flute Length	Overall Length	Shank Diameter
RDS50030-1	3.0	166	171	215	6
RDS50050-1	5.0	259	267	310	6
RDS50080-1	8.0	410	422	462	8
RDS50090-1	9.0	466	480	525	10

💎 Premium Materials & Coatings

Only alloy rods from well-known original manufacturers are used. We guarantee 100% original materials, never recycled, to ensure high performance and wear resistance.

Coating Item	ALTiN	AlCr-based	TiSiN	AlCr-Blue
Hardness (HV)	3100-3400	3100-3500	3300-3700	3300-3700
Thickness	1-2.5μ	1-3μ	2-3μ	2-3μ
Oxidation Temp	900-1000	900-1100	900-1000	900-1000
Color	Black	Bright Grey	Copper	Blue

📦 Packaging & Shipping

🚀 Our Advantages

Leading manufacturer of carbide cutting tools in China.
More than 15 years of industry experience.
100% on-time delivery commitment.
Customized production and competitive pricing.
Consistent quality through long-lasting innovation.

📜 Certifications

❓ Frequently Asked Questions

Q1: What is the maximum drilling depth for your carbide drills? A1: Our deep-hole carbide internal cooling drills can reach a maximum drilling depth of up to 50xD (50 times the diameter).

Q2: Do you offer custom sizes for non-standard applications? A2: Yes, non-standard products are available according to customer's drawings or samples to meet unique precision machining requirements.

Q3: What types of materials are used for the drill rods? A3: We use only premium solid carbide rods from well-known international and domestic brands like Guhring, Kennametal, and CERATIZIT.

Q4: Are these drills suitable for stainless steel? A4: Yes, we provide specific internal coolant drills optimized for general-purpose metal drilling and stainless steel-specific applications.

Q5: What is the benefit of the internal coolant design? A5: The internal cooling system allows for better heat dissipation and chip removal during high-speed and deep-hole drilling, extending tool life.

Q6: What coatings are available for improved wear resistance? A6: We offer multiple high-performance coatings including ALTiN, AlCr-based, TiSiN, and DLC to suit different workpiece materials.